Improvement in feed-water regulators



c. M. 'BRIDG ES.

Fee' d Water Regulator.

' Patented Sept. 14,1875.

N. PETERS, FHOTO-LITHOGRAPH ER, WASHINGTON. D. O.

UNITED STATES PATENT CHRISTOPHER M. BRIDGES, OF LEON, IOWA, ASSIGNOR TOHIMSELF AN CREED BOBBITT, OF SAME PLACE.

IMPROVEMENT IN FEED-WATER REGULATORS- Specification forming part ofLetters Patent N 0. 167,639, dated September 14, 1875; application filedAugust 6, 1875.

To all whom it may concern:

- Be it known that I, CHRISTOPHER M. BRIDGES, of Leon, Decatur county,Iowa, have invented a new and Improved Boiler Feed-Regulator, of whichthe 'following' is a specification V My invention consists of a float ina chamber connected to the boiler at the water-level, to rise'when thewater fills the chamber, and open a passage from the chamber containingthe float to the pump, and allow the boiler pressure to close thecheck-valve in the supply-pipe from the tank, and so that a circulationof the hot water of the boiler will be maintained through the pump aslong as the Water in the boiler is high enough to keep the chamber fulland the float up; but when the water falls in the boiler below theconnection with the chamber the pump will exhaust the chamber, and thefloat will fall and close the passage from the float-chamber,when thecheckvalve, being relieved of the boiler pressure, will open, thusmaking an automatic regulator, and at the same time facilitating thecirculation of the water, so that steam makes faster and moreeconomically.

Figure I is partly a side elevation and partly a sectional elevation,and Fig. 2 is a transverse section.

Similar letters of reference indicate corresponding parts.

A is the boiler. B is the float-chamber; O, the pipe connecting thefloat-chamber with the boiler at the water-line; D, the float in thechamber; E, the pipe connecting the floatchamber at the bottom with thepipe E, which connects the feed-tank .G with the pump H, and I is avalve contrived to open connection of the floatfchamber with the pump,when the float rises, and close it when the float falls. The pipe F willhave a'oheok-valve to be closed by steam-pressure when the valve Iopens.

. Having thus described my invention, I claim as new and desire tosecure by Letters Patent-- The float-chamber B, float D, passage E, anda valve, I, combined with the boiler and the pump, in the mannerdescribed, to open a circulating-passage through the boiler andfeed-pump when the float rises, and close it when the float falls,substantially as specified.

URIAH BOBBITT, A. S. UPDEGRAFF.

